Valves - Flow Controls - Pressure Compensator - Restrictive Type - Pre-Compensator

EC08-32

FLOW ON DEMAND PRESSURE COMPENSATING ELEMENT WITH STATIC LOAD SENSE

Overview

Description

EC08-32 is a screw-in, cartridge style, load sense, flow on demand, pressure compensator valve

Operation

With inlet flow at port 2, the EC08-32 will deliver required flow at port 3 regardless of load pressure sensed at port 1

Features

  • Range of flow ratings available.
  • Hardened parts for long life.
  • Several compensation springs available.
  • Quiet, modulated response.
  • Compact, industry-common cavity.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 345 bar (5000 psi)
Burst pressure:
  • 1034 bar (15000 psi)
Flow Ratings
Flow rating:
  • 5.7 lpm (1.5 gpm) With 2.7 bar (40 psi)compensating spring
  • 11.4 lpm (3.0 gpm) With 5.5 bar (80 psi)compensating spring
  • 19 lpm (5.0 gpm) With 10.3 bar (150 psi)compensating spring
  • 30.3 lpm (8.0 gpm) With 17.2 bar (250 psi)compensating spring
Maximum internal leakage:
  • 20 ml/min (1.2 in³/min) At port 1 with pressure at port 2 and port 3 blocked 241 bar (3500 psi)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -35 to 204 °C (-31 to 400 °F) With fluorocarbon seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection:
  • 960 hr salt spray per ASTM b117 (model number - gec08-32)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.1 kg (0.22 lb)
Internal wetted surface area:
  • 105 cm² (16.2 in²)
EC08-32_Flow-Pressure
EC08-32_Dim

Materials

Cartridge: Weight: 0.10 kg (0.22 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and back-ups standard.

Standard Ported Body: Weight: 0.27 kg (0.60 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Cavity:
Cartridge installation torque:
  • 26 to 29 N-m (19 to 21 ft-lb)
Maximum allowable torque:
  • 47.5 N-m (35 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-3X-MM X = seal option
EC08-32_Order
POSITION
CODE
DESCRIPTION
EC08-32-H-J-R
H
Line Body
H
0
No Body
H
4T
Aluminum SAE 4
H
6T
Aluminum SAE 6
H
6TD
Ductile Iron SAE 6
H
8TD
Ductile Iron SAE 8
H
3B
Aluminum BSPP 3/8" (3)
H
3BD
Ductile Iron BSPP 3/8" (3)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Compensator Spring
R
40
40 Compensator Spring
R
80
80 Compensator Spring
R
150
150 Compensator Spring
R
250
250 Compensator Spring